Issue #3240906 by andypost, alexpott, mondrake: template_preprocess_image_formatter() triggers deprecations in PHP 8.1

Issue #3033279 by lauriii, mandclu, Eli-T: Move markup from template_preprocess_image_widget to a template

Issue #2849669 by alexpott, pwolanin, Munavijayalakshmi, dawehner: Fix \Drupal\Component\Utility\Unicode() because of the Symfony mbstring polyfill

Issue #2776975 by joelpittet, dawehner, tim.plunkett, xjm, pfrenssen: March 3, 2017: Convert core to array syntax coding standards for Drupal 8.3.x RC phase

Issue #2473943 by Manjit.Singh, Cottser, mu5a5hi, LewisNyman, mortendk, rteijeiro, rachel_norfolk: Prefix form-file and form-managed-file classes with js-

Issue #2350837 by dawehner, Berdir, larowlan, Wim Leers: Convert most usages of EntityInterface::getSystemPath() to use routes

Issue #2343661 by larowlan, tim.plunkett | xjm: Rename l() to _l() and url() to _url(), and document replacements.

Issue #1898420 by mondrake, joelpittet, InternetDevels, claudiu.cristea, c4rl, DamienMcKenna, Albert Volkman, shanethehat, thedavidmeister: Image.module - Convert theme_ functions to Twig.

Issue #2136197 by andypost, jessebeach, swentel, longwave, Berdir: Move field/instance/widget/formatter settings out of annotation / plugin definition.

Issue #2042773 by yched, Berdir, pcambra: Change #items within a theme_field() render array from an *array* to the same $items *object* used throughout the rest of the formatter pipeline.

Issue #2072995 by claudiu.cristea, yched: Change notice: Move FAPI callbacks for file/image widgets in classes.

Issue #2015697 by claudiu.cristea, yched, Berdir, splatio: Convert field type to typed data plugin for file and image modules.

Issue #2056405 by plopesc, yched: Let field types provide their support for 'default values' and associated input UI.

Issue #2009580 by pplantinga, Samvel, hussainweb, andypost, siccababes: Replace theme() with drupal_render() in image module.

Issue #2010126 follow-up by Eric_A: Replace theme() with drupal_render() in image module for theme_image_formatter().

Issue #2009014 by c4rl, hussainweb, Samvel, jenlampton, benjifisher: Replace theme() with drupal_render() in file module.

Issue #2010126 by juanolalla, alweb: Replace theme() with drupal_render() in image module for theme_image_formatter().

Issue #1969728 by yched, effulgentsia, swentel, fago, plach: Implement Field API 'field types' as TypedData Plugins.

Issue #1950632 by effulgentsia, Wim Leers, amateescu, yched: Create a FieldDefinitionInterface, decoupled from  and  config entities, and use it for formatters and widgets.

Issue #1987066 by Kevin Morse, JohnAlbin, rteijeiro, echoz, ry5n: Rename files to match CSS file naming convention.

Issue #625958 followup by slashrsm, chx, andypost, yched: [Follow up] Support Uploading Multiple Files for HTML5 Browsers via #multiple attribute.

Issue #625958 by slashrsm, quicksketch, eojthebrave, droplet, danlinn, czigor: Support Uploading Multiple Files for HTML5 Browsers via #multiple attribute.

Issue #1839066 by Berdir, das-peter, amateescu, fago: Implement the new entity field API for the image field type.

Issue #1807692 by plach, YesCT, yched: Added Introduce a column synchronization capability and use it to translate alt and titles through the image field widget.

Issue #1496480 by mrf, disasm, kbasarab, pfrenssen, cam8001, typhonius, Letharion, ACF, vijaycs85, heyrocker, Berdir, alexpott: Convert file system settings to the new configuration system.

Issue #1874300 by Berdir, swentel: Remove $entity_type argument from field.module functions that receive a single $entity.

Issue #1705920 by tim.plunkett, sun, underq, javier.alejandr...: Convert all calls to procedural drupal_array_()*() functions to Drupal\Component\Utility\NestedArray.

Issue #815144 by eiriksm, highrockmedia: Added Imagefields should have the option to require Custom Alt text.